Avoiding Bitcoin Scams
Common fraud patterns and habits that protect your keys, accounts, and funds.
Bitcoin Basics
On-Chain vs. Off-Chain Activity
When settlement happens on the blockchain and when secondary layers take over.
Overview
On-chain transactions are recorded directly on Bitcoin's ledger. They offer strong settlement finality but compete for limited block space. Off-chain systems—such as the Lightning Network—settle less frequently on-chain while enabling faster, cheaper payments between participants.
For long-term savings, on-chain custody is common. For frequent small payments, layer-two tools may be more practical. Each approach trades speed and cost against different trust and operational assumptions.
On-chain settlement
On-chain transactions are recorded in blocks and inherit the network's security model. They suit final settlement and cold storage moves.
The trade-off is cost and speed during congestion. Block space is a shared resource.
Off-chain and layer-two options
Payment channels and layer-two protocols allow exchanging balances with less frequent on-chain settlement. Lightning enables fast, low-cost payments between cooperating nodes.
These systems add operational assumptions—liquidity routing and channel management. They excel at small payments, not necessarily vaulting.
Choosing the right rail
Long-term savings often stay on-chain. Frequent micropayments may justify layer-two setup. Many users combine cold on-chain holdings with a hot spending wallet.
Understand custody in each layer. On-chain keys you hold remain bearer assets; Lightning adds protocol-specific backup needs.
